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EP0215474A3 - Polymer layer recovery from a multilayered chip material - Google Patents

Polymer layer recovery from a multilayered chip material Download PDF

Info

Publication number
EP0215474A3
EP0215474A3 EP19860112797 EP86112797A EP0215474A3 EP 0215474 A3 EP0215474 A3 EP 0215474A3 EP 19860112797 EP19860112797 EP 19860112797 EP 86112797 A EP86112797 A EP 86112797A EP 0215474 A3 EP0215474 A3 EP 0215474A3
Authority
EP
European Patent Office
Prior art keywords
chip material
polymer layer
recovered
layer recovery
multilayered
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP19860112797
Other languages
German (de)
French (fr)
Other versions
EP0215474A2 (en
Inventor
James D. Schoenhard
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP0215474A2 publication Critical patent/EP0215474A2/en
Publication of EP0215474A3 publication Critical patent/EP0215474A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J11/00—Recovery or working-up of waste materials
    • C08J11/04—Recovery or working-up of waste materials of polymers
    • C08J11/10—Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation
    • C08J11/16—Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation by treatment with inorganic material
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J11/00—Recovery or working-up of waste materials
    • C08J11/04—Recovery or working-up of waste materials of polymers
    • C08J11/06—Recovery or working-up of waste materials of polymers without chemical reactions
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/62—Plastics recycling; Rubber recycling
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/25—Web or sheet containing structurally defined element or component and including a second component containing structurally defined particles
    • Y10T428/254—Polymeric or resinous material

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
  • Processing Of Solid Wastes (AREA)

Abstract

A polymer layer of polyester or polyvinyl chloride is recovered from a multilayered scrap or waste chip material by contacting the chip material with an aqueous solution containing a base metal hydroxide and a reagent selected from the group consisting of a salt, an amine, and an oxidiz­ ing agent. The removal process is accelerated by using, either singularly or in combination, an alkyl dimethyl benzyl ammonium chloride, heat, or agitation. Thereafter the po­ lymer layer is isolated and recovered.
EP19860112797 1985-09-16 1986-09-16 Polymer layer recovery from a multilayered chip material Withdrawn EP0215474A3 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US77625685A 1985-09-16 1985-09-16
US776256 1985-09-16
US06/802,791 US4629780A (en) 1985-09-16 1985-11-27 Polymer layer recovery from a multilayered chip material
US802791 1991-12-06

Publications (2)

Publication Number Publication Date
EP0215474A2 EP0215474A2 (en) 1987-03-25
EP0215474A3 true EP0215474A3 (en) 1988-08-10

Family

ID=27119164

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19860112797 Withdrawn EP0215474A3 (en) 1985-09-16 1986-09-16 Polymer layer recovery from a multilayered chip material

Country Status (3)

Country Link
US (1) US4629780A (en)
EP (1) EP0215474A3 (en)
KR (1) KR870003149A (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3936063C1 (en) * 1989-10-28 1990-10-31 General Electric Co., Schenectady, N.Y., Us
US5252614A (en) * 1991-05-09 1993-10-12 Shell Oil Company Process for separating polyethylene terephthalate from polyvinyl chloride
DE4137895C2 (en) * 1991-11-18 2000-02-10 Johannes Kersting Process for separating aluminum foils from plastic foils, in particular PE foils
US5266124A (en) * 1991-11-27 1993-11-30 Southern Research Institute Process for removing contaminants from polyolefins
JP3117808B2 (en) * 1992-09-25 2000-12-18 日産自動車株式会社 Coating removal method
US5958987A (en) * 1996-04-10 1999-09-28 The Coca-Cola Company Process for separating polyester from other materials
DE19712521C2 (en) * 1997-03-25 2002-06-27 Detlef Frank Process for the material digestion of composite materials containing synthetic resin and metallic components
JP3846029B2 (en) * 1998-05-14 2006-11-15 ユニマテック株式会社 Method for producing fluorinated oligomer containing COOH groups at both ends
PL203890B1 (en) * 2001-06-19 2009-11-30 United Resource Recovery Corp Process for separating polyester from other materials
KR100470296B1 (en) * 2002-03-12 2005-02-05 박수환 Multipurpose receptacle for cauterizing moxa
US7098299B1 (en) * 2005-03-16 2006-08-29 United Resource Recovery Corporation Separation of contaminants from polyester materials
DK3831566T3 (en) 2018-08-01 2023-01-30 Repetco Innovations S L Method for separating the layers in multi-layer plastic materials
WO2020066652A1 (en) 2018-09-25 2020-04-02 Dic株式会社 Separation/recovery method for laminated film

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1087038A (en) * 1964-09-23 1967-10-11 Kurt Bratring Improvements relating to the reprocessing of used safety or combustion resistant photographic films
DE1934552A1 (en) * 1968-07-16 1970-01-22 Du Pont Process for recovering the polyester base material from polyester films
US3503904A (en) * 1966-07-27 1970-03-31 Eastman Kodak Co Sub removal from polyester scrap

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4033907A (en) * 1975-07-07 1977-07-05 Monsanto Company Reclaiming waste plastics
JPS55166221A (en) * 1979-06-13 1980-12-25 Fuji Photo Film Co Ltd Recovery of scrap film

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1087038A (en) * 1964-09-23 1967-10-11 Kurt Bratring Improvements relating to the reprocessing of used safety or combustion resistant photographic films
US3503904A (en) * 1966-07-27 1970-03-31 Eastman Kodak Co Sub removal from polyester scrap
DE1934552A1 (en) * 1968-07-16 1970-01-22 Du Pont Process for recovering the polyester base material from polyester films

Also Published As

Publication number Publication date
EP0215474A2 (en) 1987-03-25
US4629780A (en) 1986-12-16
KR870003149A (en) 1987-04-15

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